1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
// 7z_AES.h
#ifndef __CRYPTO_7Z_AES_H
#define __CRYPTO_7Z_AES_H
#include "Common/MyCom.h"
#include "Common/Types.h"
#include "Common/Buffer.h"
#include "Common/Vector.h"
#include "../../ICoder.h"
#include "../../IPassword.h"
#ifndef CRYPTO_AES
#include "../../Archive/Common/CoderLoader.h"
#endif
DEFINE_GUID(CLSID_CCrypto_AES_CBC_Encoder,
0x23170F69, 0x40C1, 0x278B, 0x06, 0x01, 0xC1, 0x00, 0x00, 0x00, 0x01, 0x00);
DEFINE_GUID(CLSID_CCrypto_AES_CBC_Decoder,
0x23170F69, 0x40C1, 0x278B, 0x06, 0x01, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00);
namespace NCrypto {
namespace NSevenZ {
const int kKeySize = 32;
class CKeyInfo
{
public:
int NumCyclesPower;
UInt32 SaltSize;
Byte Salt[16];
CByteBuffer Password;
Byte Key[kKeySize];
bool IsEqualTo(const CKeyInfo &a) const;
void CalculateDigest();
CKeyInfo() { Init(); }
void Init()
{
NumCyclesPower = 0;
SaltSize = 0;
for (int i = 0; i < sizeof(Salt); i++)
Salt[i] = 0;
}
};
class CKeyInfoCache
{
int Size;
CObjectVector<CKeyInfo> Keys;
public:
CKeyInfoCache(int size): Size(size) {}
bool Find(CKeyInfo &key);
// HRESULT Calculate(CKeyInfo &key);
void Add(CKeyInfo &key);
};
class CBase
{
CKeyInfoCache _cachedKeys;
protected:
CKeyInfo _key;
Byte _iv[16];
// int _ivSize;
void CalculateDigest();
CBase();
};
class CBaseCoder:
public ICompressFilter,
public ICryptoSetPassword,
public CMyUnknownImp,
public CBase
{
protected:
#ifndef CRYPTO_AES
CCoderLibrary _aesLibrary;
#endif
CMyComPtr<ICompressFilter> _aesFilter;
virtual HRESULT CreateFilter() = 0;
#ifndef CRYPTO_AES
HRESULT CreateFilterFromDLL(REFCLSID clsID);
#endif
public:
STDMETHOD(Init)();
STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size);
STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size);
};
class CEncoder:
public CBaseCoder,
public ICompressWriteCoderProperties
{
virtual HRESULT CreateFilter();
public:
MY_UNKNOWN_IMP2(
ICryptoSetPassword,
ICompressWriteCoderProperties)
STDMETHOD(WriteCoderProperties)(ISequentialOutStream *outStream);
};
class CDecoder:
public CBaseCoder,
public ICompressSetDecoderProperties2
{
virtual HRESULT CreateFilter();
public:
MY_UNKNOWN_IMP2(
ICryptoSetPassword,
ICompressSetDecoderProperties2)
STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
};
}}
#endif
|
